Latest Improved build contains these patches (in addition to Staging patchset):

* vdesktop_windecor_fix.patch
* use_clock_monotonic.patch
* use_clock_monotonic-2.patch
* fsync-staging.patch
* fsync-staging-no_alloc_handle.patch
* FS_bypass_compositor.patch
* winevulkan-1.1.113.patch
* LAA-staging.patch
* proton_mf_hacks.patch
* enable_stg_shared_mem_def.patch

Brief patches description:

* Fix for virtual desktop missing window decorations bug (https://bugs.winehq.org/show_bug.cgi?id=47815)
* Use CLOCK_MONOTONIC instead of CLOCK_MONOTONIC_RAW in ntdll/server
* Add FSYNC support
* Bypass compositor in fullscreen mode
* Update winevulkan to 1.1.113 version
* IMAGE_FILE_LARGE_ADDRESS_AWARE override
* Media Foundation workarounds from Proton
* Enable STAGING_SHARED_MEMORY by default
